Collapsible delivery for printing presses



Dec. 2 7, 1938. H A OD 2,141,963

COLLAPSIBLE DELIVERY FOR PRINTING PRESSES Original Filed Dec. 5, 1933 4 Sheets-Sheet l Dec. 27, 1938.

H, A. w. WOOD 2,141,963

GOLLAPSIBLE DELIVERY FOR PRINTING PRESSES 4 sheets-sheet 2 Original Filed Dec. 5, 1953 757/714 .7Te750Z c. 27, 1938. H. A. w. WOOD 2,141,963

COLLAPSIBLE DELIVERY FOR PRINTING PRESSES Original Filed Dec. 5, 1933 4 Sheets-Sheet 3 Patented Dec. 27, 1938 C'OLLAPSIBLE DELIVERY FOR PRINTING PRESSES Henry A.

Wise Wood, New York, N. Y., assignor to Wood Newspaper Machinery Corporation,

New York, N. Y., a corporation of Virginia Application December 5, 1933, Serial No. 700,967 Renewed January 12, 1938 21 Claims.

This invention relates to a safety device connected with the delivery from a printing press.

The principal objects of the invention are to provide means for automatically dropping the delivery when a shear pin breaks in one of the folding roller brackets or when, for any reason, a failure occurs in the device which takes papers away from the fan delivery, thereby causing a choke; to provide means whereby more space between the delivery fans and the delivery belts is furnished automatically by the dropping of the delivery; to provide means whereby an electric contact will be operated by the same action of the delivery to stop the press and prevent damage, I and to provide a delivery which can be thus dropped in case of accident and can be restored to its normal condition in a very'simple manner.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is an end View of a printing press folder of a usual type provided with a preferred embodiment of this invention;

Fig. 2 is a plan of the same;

Fig. 3 is an elevation looking in the arrow 3 in Fig. 1;

Fig. 4 is a view similar to Fig. 1 showing the initial position of the delivery parts when a shear 1 pin breaks in one of the folding roller brackets;

Fig. 5 is a similar view showing the delivery collapsed and illustrating the extra amount of space just provided for the delivered products;

Fig. 6 is a view supplementary to Fig. 1 showing parts not fully illustrated therein with the delivcry in its normal elevated condition, and

Fig. 7 is a diagrammatic view showing the press.

The modern trend in the construction of printing machinery is toward higher speeds and this is true particularly of the newspaper printing field. When speeds are increased in this line many difiiculties present themselves necessitating the provision of safety devices arranged to operate in case any part of the press fails to function properly. In the present case the invention is applied to the folder and delivery of a newspaper printing press and folding roller brackets or supports are provided with shear pins which, upon breaking, allow a movement of the folding roll away from its normal position. As so far described, these features are old but, according to this invention, the movement of the folding roll due to the breaking of the shear pin drops the delivery automatically and also a choke occurring in the delivery has the 55 same result. The falling ofthe delivery operates the direction of an electrical contact to stop the press.

The delivery is readily'restored to normal operative position after the above described action takes place. The invention is shown as applied to a folder which has a well provided with known box type frame I and is a folding cylinder 2 and a cutting cylinder 3, not shown in full, but fed through a former 6| from a It will be understood that the printing press 62 as usual.

folding cylinder 2 A spring l tends to keep the bracket l against the yoke it, thus holding the parts in the position shown in Fig. 1 w

ith a yielding pressure.

The folding roll brackets ii and I being pivoted above to swing into contact by gravity, a separate bracket ii is pivoted by a stud I2 in the bracket 6 which normally would swing down by gravity about its pivot and is.he1d in position by a shear pin l3 carried by the bracket 6. The bracket 5* carries the folding roll 4. When excessive strain comes between the rollers 4 and 5 the shear pin will break and the bracket 6 pivoted on the stud i2 will swing by gravity to the position shown in Fig. 4. A similar arrangement is carried on the bracket 1 for the roller 5 but does not have the function of dropping the delivery. Of course, these parts are duplicated at the opposite ends of the rollers.

When a product is folded off the folding cylinder 2 it passes down through the folding rollers 4 and 5 and bears against a set of guides M which are freely pivoted on the fan shaft l5. Each of these guides has a notch I6 at its lower end for cooperating with a Fan blades the fan shaft l5.

from the press in shaft IT, as will appear hereinafter. !8 are bolted to a block l9 secured to This fan shaft as usual is driven some convenient manner. The

fan blades l8 serve to guide the papers delivered in the desired path along the convex surface of the guide E4. At the bottom of their course the papers come up against stops 2| integral with the guides l4 and are carried away by the conveyor and thence to the mailing room by delivery belts 30.

A pair of arms collapsible deliver 22 constitute the frame of the y. They are pivoted on a shaft 23 supported by stationary brackets 24 secured to the bed plate. The opposite end of this frame is capable of oscillating about the pivot shaft 23 as a center and it is provided with a shaft 25 extending across between the arms. This shaft has fixed to it a barring hub hole 26 into which a bar may be inserted for turning the shaft 25 and resetting the delivery after it has collapsed. Also secured to the shaft 25 is a latch lever 27 to which are pivotally connected a pair of links 29 by studs 35. The lower ends of these links are provided with a stud 3| which is mounted on a stationary bracket 32 which is secured to the bed plate by a screw 33. This provides a toggle joint for supporting the free end of the delivery. It will be noticed that in the operative position shown in Fig. l the toggle is arranged with its joint broken. For this reason, if the toggle is allowed to swing, the weight of the frame will swing it in the direction of the arrow in Fig. 1 and allow the frame and delivery to fall, as indicated in Fig. 5. For the purpose of preventing this during normal operation the lever 21, which is secured on the shaft 25, carries the toe 34. A latch 35 is pivotally mounted on a stud 36 on a projection of the frame 22, The latch 35 is urged to swing in a clockwise direction, as shown in Fig. 1, by a spring 31. It also carries a projection 38 for the mounting of a screw 39 which can be adjusted to the desired position and constitutes an adjustable member adapted to be engaged by a moving part at the desired time to lift the latch 35 and release the toggle so that the delivery will fall.

A shaft 40 is oscillatably mounted in the frames 22 and has secured to it levers 4|, the right hand end of which constitutes the support for the shaft H. The other ends of these levers provide pivotal connections for eye bolts 42. These eye bolts are supported at the other end by passing through poppets carried by the frame 22 and the eye bolts engage the stop screws 39, when pushed forward for the purpose of raising the latch, as stated. The eye bolts carry springs 43 held in place by jam nuts 44 with the other ends of the springs bearing against the poppets 45.

It will be obvious that any motion of the shaft l1 downward will swing the levers 4| and release the latch 35 through the operation of the eye bolts 42 and thereby allow the delivery to drop. Fig, 4 illustrates the action that takes place when the shear pin of the folding roller 4 breaks. This allows the bracket 6 to swing into the position shown in that figure. This results in swinging the guides l4 slightly about the shaft l5 and moving the notch IE to one side, thus depressing the shaft IT and releasing the latch.

A bracket 46 is secured to each of the levers 4| to provide a mounting for a shaft 4! which carries eccentrics 48 cooperating with buffer plates 49. One of these buffer plates is provided for each of the belts 20 and they bear against the undersides of the upper strands of the belts to support them. The other end of each buffer plate 49 is secured individually to a bracket 50 by means of screws 5| and this bracket is secured to the shaft IT. This end of each buffer plate is slotted to permit vertical adjustment so as to provide a proper distance between the belts 20 and the fan blades |8. The other end of each buffer plate is adjusted by means of the eccentric 48.

In further explanation of certain features of the drawings, it may be pointed out that the necessary guide rollers are provided for the delivery belts 20. These are shown as a wooden roller 55, a series of idlers 56, a roller 51 and 2.

series of pulleys 58, the latter being mounted free to rotate on the shaft 25. The pulleys are provided with collars 59 to prevent end motion thereof.

From this it will appear that any choke between the fan blades and the belts 20 will force down the buffer plates 49 and the shaft H to which they are attached. This, as in the former case, ocsillates the lever 4| in such a direction as to push the eye bolts 42 to the right, as shown in Fig. 5. This releases the latch 35 and permits the delivery to collapse by gravity due to the fact that in the normal position, as shown in Fig. 1, the toggle joint is broken or swung to one side of the pivots above and below.

Fig, 1 shows a bracket 52 secured to the frame 22 for the mounting of an electrical switch 53, the roller of which cooperates with a lug 54 carried on the lever 4|. An electrical circuit 60 is provided connected with this switch and connected with a motor 64 for the press to stop the motor and press when this switch is turned in the above mentioned manner.

Thus besides providing a safety feature to release the delivery to permit more space to be provided between the delivery belts and the fan, this device also operates an electric contact to stop the press. The papers may then be cleaned out, the delivery reset, and the press started up without any permanent damage being caused.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a delivery for folded products, the combination with a delivery fan and a movable frame below the fan having delivery belts carried thereby, of a pair of folding rolls, means for moving said frame down to space the belts from the fan if a choke of products occurs at the folding rolls, and means controlled by one of said folding rolls for operating said frame moving means.

2. In a printing press delivery, the combination with a pair of folding rolls arranged to move in case of a feed into them of excessive thickness of folded products, of a movable delivery, a fan for moving the folded products from the folding rolls to the delivery, and means for lowering the delivery by the motion of one of said folding rolls out of position.

3. In a printing press delivery, the combination with a pair of folding rolls arranged to move in case of a feed into them of excessive thickness of folded products, of a movable delivery, a fan for moving the folded products from the folding rolls to the delivery, and means for lowering the delivery actuated by the motion of one of said folding rolls out of position.

4. In a device for delivering folded products, the combination with a pair of folding rolls, one of them being arranged to move bodily when an excessive thickness of folded products is passed between them, a movable guide for the folded products after they pass the folding rolls located in position to be moved by motion of said roll, an endless delivery, means for delivering the products from the folding rolls to the delivery, a movable frame on which the delivery is carried, and means on the guide for causing said frame and delivery to drop away from said guide.

5. In a device for delivering folded products from a printing press, the combination with a pair of folding rolls, movably arranged, break pins for holding them in position for normal operation adapted to break when passing between the rolls an excessive thickness of folded products, a movable guide for the folded products after they pass the folding rolls in position to be moved by one of said rolls if its break pin breaks, an endless delivery, means for delivering the products from the folding rolls to the delivery, a movable frame on which the delivery is carried, and means on the guide for controlling the movement of said frame and delivery into such position as to provide a wide space above the delivery for the passage of said folded products.

6. In a device for delivering folded products from a printing press, the combination with a pair of folding rolls, one of said rolls being mounted to move when an excessive thickness of folded products passes between the two rolls, a rotary fan for delivering the products from the rolls, a guide along which the fan moves the products, said guide being pivotally mounted and having means for engaging the movable roll so that said movement of said roll will swing the guide, a delivery frame, a delivery carried by said frame for receiving the products from said fan, a lever, said guide having means for depressing the lever at one end when the guide moves, as described, and means operated by the lever for causing the frame to descend.

'7. In a device for delivering folded products from a printing press, the combination with a pair of folding rolls, one of said rolls being mounted to move when an excessive thickness of folded products passes between the two rolls, a rotary fan for delivering the products from the rolls, a guide along which the fan moves the products, said guide being pivotally mounted and having means for engaging the movable roll so that said movement of said roll will swing the guide, a delivery frame pivoted at one end and free at the other, a lever, said guide having means for depressing the lever at one end when the guide moves, as described, means for supporting the free end of the frame, and means directly operated by the lever for releasing the supporting means, when the lever is depressed, to allow the frame to descend.

8. In a device for delivering folded products, the combination with a pair of folding rolls, one being movable away from the other in case'of the passing of an excessive thickness of folded products between two rolls, a fan delivery movable into position to receive the folded products from the guide, a pivoted guide for the folded products having means engaging the movable roll so that the guide will swing when the roll moves, the guide having a slanting sided notch at its end, a pivoted lever having a member normally resting in said notch, but movable thereby when the guide is moved by the roll, a member movable by the action of the lever, a delivery frame pivoted at one end and free at its opposite end, a toggle for sup-porting the free end of the delivery frame, a latch for holding the toggle in a position to support said frame with the toggle in broken position, and means whereby the movement of said movable member will release the toggle and allow it to swing in a direction. to permit the free end of the frame to drop by the action of gravity.

9. In a device for delivering folded products, the combination of a pivoted guide for the folded products, having a notch, a fan delivery in position to receive folded products from said guide, means for swinging the guide in case of the passing of an excessive thickness of folded products through the device, a pivoted lever having a shaft normally resting in said notch, but movable downwardly thereby when the guide is moved, an eye bolt pivoted to the lever and movable thereby, a delivery frame. pivoted at one point and free at its opposite end, a toggle for supporting the free end of the delivery frame, a latch for holding the toggle in a position to support said frame with the toggle in broken position, and means whereby the movement of said eye bolt caused by the depression of the lever will release the toggle and allow it to swing in a direction to permit the free end of the frame to drop.

10. In a device for delivering folded products, the combination of a rotary fan, a movable guide along which the fan moves the products, a delivery frame pivoted at one end and free at the other, a delivery conveyor on the delivery frame, a lever, said guide having means for operating the lever when the guide moves, means for moving the guide when an excessive thickness of products enters the device, movable means for supporting the free end of the frame, and means directly operated by the lever for releasing the supporting means, when the lever is operated, to allow the frame to drop.

11. In a printing press delivery, the combination with a pair of folded rolls arranged to move in case of a feed into them of excessive thickness of folded products, of a movable delivery, a fan for moving the folded products from the form rolls to the delivery, a movable bufier under the delivery, means whereby in case of a choke of folded products between the fan and delivery the buffer will be forced away from the fan thereby, and means operated by the motion of the buffer for lowering the delivery to provide a greater space between it and the fan.

12. In a delivery for folded products, the combination of a frame pivoted at one point and having a freely movable end, a toggle under said end pivotally connected therewith, said toggle having a projecting toe, a latch normally holding said toe in a position to cause the toggle to assume a broken condition so that when the toe is released the weight of the free end of the frame will swing the toggle and the frame will descend, delivery belts on said frame, buffer plates below said belts to support them, said buffer plates being movable, a delivery fan above the belts, and means for releasing said latch by the motion of said buffer plates if they are moved by a choke of the folded products.

13. In a delivery for folded products, the combination of a frame pivoted at one point and having a freely movable end, a toggle under said end pivotally connected therewith, said toggle having a projecting toe, a latch normally holding said toe in a position to cause the toggle to assume a broken condition so that when the toe is released the weight of the free end of the frame will swing the toggle and the frame will descend, delivery belts on said frame, buffer plates below said belts to support them, said buffer plates being movable, a delivery fan above the belts, a lever having a free end under said buffer plates, whereby, when the buffer plates are forced down by a choke of papers between the fan and the delivery belts, the lever will be swung on its pivot, and means operated by the lever for releasing said latch.

14. In a delivery for folded products, the combination with a delivery fan and a movable frame below the fan having delivery belts carried thereby, of a pair of folding rolls one of which is bodily movable, movable buffer plates under the belts, and means for moving said frame down by the motion of one of said folding rolls if a choke of products occurs at the folding rolls to space the belts from the fan, said means serving for moving the frame down for the same purpose if a choke occurs between the fan and belts.

15. In a delivery for folded products, the combination with a printing press, a delivery fan, a movable frame below the fan having delivery belts carried thereby, and means by which the press supplies a web to the fan, of a pair of folding rolls, means for moving said frame down to space the belts from the fan if a choke of prod ucts occurs at the folding rolls, a circuit for stopping a motor for driving the press, a switch in said circuit, and means mounted on the last named means for operating said switch to stop the feeding of products to the delivery.

16. In a delivery for folded products from a 'printing press, the combination with a press,

a delivery fan, means for supplying a printed web from the press to the fan, and a movable frame below the fan having delivery belts carried thereby, of movable buffer plates under the belts, means for moving said frame down to space the belts from the fan if a choke of products occurs between the fan and belts, a circuit for stopping the printing press, a switch in said circuit, and means mounted on the last named means for operating said switch to stop the press.

17. In a delivery for folded products, the combination with a printing press, a delivery fan, means for feeding the products from the press to the delivery, and a movable frame below the fan having delivery belts carried thereby, of a pair of folding rolls, movable buffer plates under the belts, means for moving said frame down to space the belts from the fan if a choke of products occurs at the folding rolls, a circuit for stopping the printing press, a switch in said circuit, and means mounted on the last named means for operating said switch to stop the feeding of products to the delivery.

18. In a printing press delivery, the combination with a printing press for feeding the web to the delivery and a pair of folding rolls arranged to move in case of a feed into them of excessive thickness of folded products, of a movable delivery, a fan for moving the folded products from the folding rolls to the delivery, a movable buffer under the delivery, means whereby in case of a choke of folded products between the fan and delivery the buffer will be forced away from the fan thereby, means operated by the motion of the buffer for lowering the delivery to provide a greater space between it and the fan, a circuit for stopping the printing press, a switch in said circuit, and means mounted on the last named means for operating said switch and stop the press.

19. In a printing press delivery, the combination with a printing press, a delivery, and a pair of folding rolls arranged to move in case of a feed into them of excessive thickness of folded products, of a movable delivery, a fan for moving the folded products from the folding rolls to the delivery, means for lowering the delivery when one of said folding rolls moves out of position, a circuit for stopping the printing press, a switch in the said circuit for opening the circuit to stop the press, and means actuated by the said lowering means for operating said switch.

20. In a printing press delivery, the combination with a pair of folding rolls, a delivery fan and a delivery conveyor, of means whereby a choke between the fan and the conveyor causes the delivery conveyor to move away from the fan.

21. In a printing press delivery, the combination with a pair of folding rolls, a delivery fan and a delivery conveyor, of means whereby a choke between the fan and the conveyor causes the delivery conveyor to move away from the fan and means for utilizing this motion to stop the feeding of products to the folding rolls.

HENRY A. WISE WOOD. 

